Cableway-carriage



K. BERGER. CABLEWAY CARRIAGE.

APPLICATION FILED JUNE 1, 1920.

1,383,782. Patented July 5, 1921.

2 SHEETS-SHEET I.

K. BERGER. CABLEWAY CARRIAGE.

APPLICATION FILED IUNE 11 I920.

1,383,? 82. Patented July 5, 1921.

2 SHEETSSHEET 2- gwventoz attouwqd.

v' 'w I lower the fall block;

M use.

' UNITED S-TTES;

KNUTE BERGER, on SEATTLE, wAsnlNcTomnssicNon To WASHINGTON IRON 'wonxs, or SEATTLE, WASHINGTON, A ooRronATmNoT WASHINGTON;

cAnnEwAY-oAnnrAen State of Washington, have invented certain new and useful Improvements in Cableway-Carriages, of which the following is a speclfication. A

My invention relates to cableway "carriages and consists of certain constructions whereby the fall line used in connection with the carriage may be locked so as to hold the load suspended by the fallirope, without having to depend upon the strain applied to the fall rope by the engine, and whereby also the fall-line-locking mechanism may be released whenit is desired to The features of .my invention=which I deem to be novel willbe described in connection with associated parts of acarriage and the parts which I believe to be novel and upon which I desire to secure a'patent will then bedefined by the claims. I

"In the accompanying drawings I have shown my invention embodied in the features of the construction which I prefer to Figure l is a side view of a carriagehaving my invention embodied therein. f

Fig. 2 is a section taken ,on the central plane of the carriage. f.

Figs. 3 and 4 are, respectively, side View and central sectional view of a carriage showing a slight modification-in the type of locking mechanisms. I

Figs. 5 and 6 are similar views showing another slightly modified form ofconstruction.

Fig. 7 is a view showing the type of cablewayl with which my'device'is intended to be use I The chief purposeof my invention is' to' make it possible to raise the fall block to, or partly to, the carriage and then to hold it lockedin that position while the carriage is moved along the trackway or standing line. The carriage as shown in the drawings consists ofa frame composed of two plates 1, these plates being separated sufficiently to accommodate the sheaves and locking mechanism which are employed. This carriage has the usual track wheels 10, which run f Specification of Letters Patent. P317911 Application filed June 1,1920, Serial No. 385,589.

ted July 5, 1921.;

upon the main or standing cable 11, vthe latter cable forming the track and support; ng means for the carriage. i

Thecarriage has a sheave,'as3, over. which the fall line 30 passes. Thisfall line has a fall block 31'mounted in a loop thereof, the end of the fall line extending back to and being supported from the carriage. A section of this'fall line adjacent to the carriage is preferably made as a chain, as a chain acts better with my locking mechanism than would a cable. A I I 1 The locking mechanismfor the fall line consists of two parts, one of which, atleast, is movable relative to the other and between which the fall linelpasses. In Fig. 2 one, of these holding mechanisms consists of a block 4 which is :-fixed betweenthe side plates 'l of the carriage. The other or complemental holdingmember consists of'a bell crank or two-armed lever 5 which is piv oted at 50 between the side plates of the carriage; I The armf5l is of such length as to extend over to and engage the fall line op-' p'osite the face ofjthe block 4:. In the position of these parts shown in 'Fig. 2, it "is evident that the fall line will be held so that the'fall block 31 {cannot lower, whether or not a s p a d pon the an line b y d the holdi g dog, .v

The fall line '30 passes about the fall block 31 and has its end extending upwardly and secured to the, arm filwhich engages with and holdsthe fall line. To theother ar1n52 issecured a line 6, by which the dog is controlled. This line 6 extends in theopposite direction from: the carriage from that of the fall lineQlIt maybe the back haul lilie'or its equivalent. V a. I I

In some cases, andj'preferably in most cases, a secondpulley 40 is mounted-between thev sides of the carriage 'below'the pulley 3, over which the fall line passes. This serves as a guide for the fall line. p

In Fig. 3'Ihave shown lever arms 7 and which are connected, as by link 71, so as to move together and which are in-turnse; cured to the shafts of the movable locking dogs 53 and 54:. The dog 54 is shown as movable and acts as a substitute for the fixed block 4. These blocks as shown are grooved to accommodate the chain and hold the-.-

chain by positive gripping against the sides thereof, whereas the dog 51 as shown in Fig. 2, engages under the end of one of the links to thereby hold the chain.

In Fig. 6 a modified construction is shown in which the holding is done after the same plan as" shown in Fig. 2, but in which a supplemental holding dog 55 is substituted for the fixed block 4.

I prefer to provide both arms of the movable locking dog 5 with more than one hole, as 8, for the purpose of attaching the fall line and the back haul line thereto, so that the relative strength of action of the two linesupon this dog may be varied and controlled. v

' This mechanism provides automatically locking means for holding the load after it has been raised by the fall line. The usual carriage hauling lines may be employed in addition to those described, in which case the line 6becomes merely "a lock controlling line.

It will be noted that in the locked position the end of the fall line being secured to the two-armed lever 5, between the thrust block a and the pivot 50 of the lever, there is a certain downward moment due to theweight upon the fall block 31. To release the look upon the fall line, the locking arm of the lever is'raisedand this action draws the connection ofthe fall line thereto mward toward its pivot, with reference to a horizontal line through the pivot. This results in decreasing the downward movement upon there is a material increase in the weightupon the fall block 31, as when a log is at tached thereto. When this occurs'the extra weight will draw, the locking arm 51- into locking position and the slackening of thefall line '30 will be immediatelylocked.

What I claim as my invention is:

'1. .A fall line grip'for cablcway carriages comprising a hinged gripping member adapted to engage the fall line, the fall line forming a loop and having its end connected to said gripping member to hold it in gripping poisition, and. means for releasing the grip, mounted upon the carriage and connected with theback-haul line to be actuated thereby.

2. A fall line gripping device for cableway carriages comprisinga thrust block, a two armed lever pivotedgwithini the carriage one arm of said lever being opposite sai thrust block and adapted to engage the fall line, means for securing the end of the fall line to the said arm of the lever, to hold it in gripping position, and means for securing the back haul line to the other arm of the lever to release the grip.

3, Tn 'a fall. rope carriage, in combination, a fall line guide, a fall line, a fall block within a loop of. the line, a fall line holding dog pivoted in the carriage, a thrust and dogging member complemental' to the hold-, ing dog, the end of the, fall line being secured to the dog to hold it in linerholding position, a back haul line, the dog having an arm to which the back haul line is secured whereby the dog may be relieved to freethe fall line. i i

4. The combination with a cableway carr iage of a fall line sheave, opposed line gripping members between which the fallline. passes from said sheave, said gripping members having, relative movement toward and from each other in gripping and releasing the fall line, the fall line end being secured to a movable member of the gripping device, and a back hard line secured to thesame movable member of the grip and acting in opposition to the fall line thereon. V

5. A cableway carriage comprising side. frames, trackway sheaves journaled therein, a fall line, 'a fall line sheave, atwo'v armed line-gripping member pivoted in the frame. and adapted to engage one arm with the fall ine after it passes over its sheave, the end,

of the fall line being secured to the same arm and by its downward pull acting to hold the grlpping member in engagement with the line, and a back haul line secured to the other arm of said gripping member to release the. line. o r

6. In a fallline gripping device forcableways, a pivoted lever having an armadapted togrip the fall line as said arm approachesa horizontal position, the fall line forming a loop and having its end connected to the said gripping arm of-the lever,and means actus ated by the backha'ul for raising the grip ping arm of the lever to release the fall line.

Signed at Seattle, Washington, this 25th day of May 1920. v

' KN E, B RGER. 

